Hi Marcus, Thanks! Didn't realise there was a larger range for the B2xx family. At 60dB it seems to perform as well as 20dB on the N210. Is that normal?
But either way - something I can work with. Thanks. <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon> Virus-free. www.avast.com <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=link> <#m_4051027392395733961_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> 2018-02-09 20:53 GMT+01:00 Marcus D. Leech via USRP-users < usrp-users@lists.ettus.com>: > On 02/09/2018 02:48 PM, Jonathan B via USRP-users wrote: > > Hi Jeff, > > Thanks for the response. > > In both cases a gain of 20dB. > > Best, > Jonathan > > The total gain-control range on the B2xx family is larger (80dB) than on > the cards used on X3xxx, N2xx, etc (typically 30.5dB) > > Try larger gain values on the B210, like 40 or 50dB. > > > > On Feb 9, 2018 8:23 PM, "Jeff Long via USRP-users" < > usrp-users@lists.ettus.com> wrote: > >> What are you using for gain settings? >> >> On 02/09/2018 01:09 PM, Jonathan B via USRP-users wrote: >> >>> Hi everyone, >>> >>> I seem to be having issues with the B210 transmitting at an incredibly >>> low power. >>> >>> I seem to be getting a 60db difference at the receiver (spectrum >>> analyzer) between the B210 and N210 with perfectly identically configured >>> transmissions using the simple uhd "tx_waveform" example program. >>> >>> Has anyone experienced such an issue. I have two B210s that seem to be >>> acting the same way. >>> >>> Thanks in advance. >>> >>> Best Regards, >>> Jonathan >>> >>> ----------------------------------------- >>> >>> Probe Output of the B210: >>> >>> -- Loading firmware image: C:\Program Files\GNURadio-3.7\share\uhd\i >>> mages\usrp_b200_fw.hex... >>> -- Detected Device: B210 >>> -- Loading FPGA image: C:\Program >>> Files\GNURadio-3.7\share\uhd\images\usrp_b210_fpga.bin... >>> done >>> -- Operating over USB 3. >>> -- Detecting internal GPSDO.... No GPSDO found >>> -- Initialize CODEC control... >>> -- Initialize Radio control... >>> -- Performing register loopback test... pass >>> -- Performing register loopback test... pass >>> -- Performing CODEC loopback test... pass >>> -- Performing CODEC loopback test... pass >>> -- Setting master clock rate selection to 'automatic'. >>> -- Asking for clock rate 16.000000 MHz... >>> -- Actually got clock rate 16.000000 MHz. >>> -- Performing timer loopback test... pass >>> -- Performing timer loopback test... pass >>> _____________________________________________________ >>> / >>> | Device: B-Series Device >>> | _____________________________________________________ >>> | / >>> | | Mboard: B210 >>> | | revision: 4 >>> | | product: 2 >>> | | serial: 3113A66 >>> | | name: MyB210 >>> | | FW Version: 8.0 >>> | | FPGA Version: 14.0 >>> | | >>> | | Time sources: none, internal, external, gpsdo >>> | | Clock sources: internal, external, gpsdo >>> | | Sensors: ref_locked >>> | | _____________________________________________________ >>> | | / >>> | | | RX DSP: 0 >>> | | | >>> | | | Freq range: -8.000 to 8.000 MHz >>> | | _____________________________________________________ >>> | | / >>> | | | RX DSP: 1 >>> | | | >>> | | | Freq range: -8.000 to 8.000 MHz >>> | | _____________________________________________________ >>> | | / >>> | | | RX Dboard: A >>> | | | _____________________________________________________ >>> | | | / >>> | | | | RX Frontend: A >>> | | | | Name: FE-RX2 >>> | | | | Antennas: TX/RX, RX2 >>> | | | | Sensors: temp, rssi, lo_locked >>> | | | | Freq range: 50.000 to 6000.000 MHz >>> | | | | Gain range PGA: 0.0 to 76.0 step 1.0 dB >>> | | | | Bandwidth range: 200000.0 to 56000000.0 step 0.0 Hz >>> | | | | Connection Type: IQ >>> | | | | Uses LO offset: No >>> | | | _____________________________________________________ >>> | | | / >>> | | | | RX Frontend: B >>> | | | | Name: FE-RX1 >>> | | | | Antennas: TX/RX, RX2 >>> | | | | Sensors: temp, rssi, lo_locked >>> | | | | Freq range: 50.000 to 6000.000 MHz >>> | | | | Gain range PGA: 0.0 to 76.0 step 1.0 dB >>> | | | | Bandwidth range: 200000.0 to 56000000.0 step 0.0 Hz >>> | | | | Connection Type: IQ >>> | | | | Uses LO offset: No >>> | | | _____________________________________________________ >>> | | | / >>> | | | | RX Codec: A >>> | | | | Name: B210 RX dual ADC >>> | | | | Gain Elements: None >>> | | _____________________________________________________ >>> | | / >>> | | | TX DSP: 0 >>> | | | >>> | | | Freq range: -8.000 to 8.000 MHz >>> | | _____________________________________________________ >>> | | / >>> | | | TX DSP: 1 >>> | | | >>> | | | Freq range: -8.000 to 8.000 MHz >>> | | _____________________________________________________ >>> | | / >>> | | | TX Dboard: A >>> | | | _____________________________________________________ >>> | | | / >>> | | | | TX Frontend: A >>> | | | | Name: FE-TX2 >>> | | | | Antennas: TX/RX >>> | | | | Sensors: temp, lo_locked >>> | | | | Freq range: 50.000 to 6000.000 MHz >>> | | | | Gain range PGA: 0.0 to 89.8 step 0.3 dB >>> | | | | Bandwidth range: 200000.0 to 56000000.0 step 0.0 Hz >>> | | | | Connection Type: IQ >>> | | | | Uses LO offset: No >>> | | | _____________________________________________________ >>> | | | / >>> | | | | TX Frontend: B >>> | | | | Name: FE-TX1 >>> | | | | Antennas: TX/RX >>> | | | | Sensors: temp, lo_locked >>> | | | | Freq range: 50.000 to 6000.000 MHz >>> | | | | Gain range PGA: 0.0 to 89.8 step 0.3 dB >>> | | | | Bandwidth range: 200000.0 to 56000000.0 step 0.0 Hz >>> | | | | Connection Type: IQ >>> | | | | Uses LO offset: No >>> | | | _____________________________________________________ >>> | | | / >>> | | | | TX Codec: A >>> | | | | Name: B210 TX dual DAC >>> | | | | Gain Elements: None >>> >>> <https://www.avast.com/sig-email?utm_medium=email&utm_source >>> =link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon> >>> Virus-free. www.avast.com <https://www.avast.com/sig-ema >>> il?utm_medium=email&utm_source=link&utm_campaign=sig-email&u >>> tm_content=webmail&utm_term=link> >>> >>> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> >>> >>> >>> _______________________________________________ >>> USRP-users mailing list >>> USRP-users@lists.ettus.com >>> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >>> >>> >> _______________________________________________ >> USRP-users mailing list >> USRP-users@lists.ettus.com >> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >> > > > _______________________________________________ > USRP-users mailing > listUSRP-users@lists.ettus.comhttp://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > > > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > >
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